package com.kuangstudy.test;

/**
 * @author Losca
 * @date 2022/3/21 23:27
 */
public class Demo2 {
    public static void main(String[] args) {
        System.out.println(f(5));
    }

    private static int f(int n) {
        if (n == 1) {
            return 1;
        }else {
            return n * f(n - 1);
        }
    }

}
